In mathematics, a set of symbols is frequently used in mathematical expressions.
As mathematicians are familiar with these symbols, they are not explained each time they are used.
So, for mathematical novices, the following table lists many common symbols together with their name, pronunciation and related field of mathematics.
Additionally, the second line contains an informal definition, and the third line gives a short example.

Note:
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9 - 4 = 5 means that if 4 is subtracted from 9, the result will be 5. The - sign is unique in that it can also denote that a number is negative. For example, 5 + (-3) = 2 means that if five and negative three are added, the result is two.

If some of these symbols are used in a Wikipedia article that is intended for beginners, it may be a good idea to include a statement like the following below the definition of the subject in order to reach a broader audience: